title: Defining patient-centered, multidimensional success criteria for treatment of chronic spine pain.
abstract: OBJECTIVE
  This study aimed to define patient-determined success criteria for treatment of chronic spine pain across four domains: pain, fatigue, emotional distress, and interference with daily activities.
  
  
  METHODS
  Seventy chronic spine pain patients were recruited from university-affiliated pain clinics.
  
  
  METHODS
  The study design was longitudinal, with pretreatment and post-treatment assessments. Post-treatment assessment occurred approximately 2 months after treatment initiation.
  
  
  METHODS
  Participants completed the Patient-Centered Outcomes Questionnaire and Follow-Up Patient-Centered Outcomes Questionnaire.
  
  
  RESULTS
  At pretreatment, patient requirements for success were a 58% reduction in pain, 61% reduction in fatigue, 64% reduction in distress, and 66% reduction in interference. These criteria, derived using a direct-scaling approach, are more stringent than criteria developed using other methods. However, patients adjusted their success criteria over time by becoming less stringent, and they used these less stringent criteria to make global judgments of treatment success. Using a scale comparison approach, success criteria for pain were a raw change of 17.5 points (0-100 numerical rating scale) and percent change of 25%. Other criteria were 7.5 (11%) for fatigue, 5.0 (13%) for distress, and 9.5 (12%) for interference.
  
  
  CONCLUSIONS
  Future research should validate these success criteria, particularly for the less studied domains of fatigue, distress, and interference, and investigate how these criteria evolve over the course of different treatments.
authors.affiliation: Department of Clinical and Health Psychology, University of Florida, Gainesville, Florida 32610, USA.
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Brown
authors.forename: Penny S
authors.initials: PS
authors.lastname: Edwards
authors.forename: James W
authors.initials: JW
authors.lastname: Atchison
authors.forename: Ann
authors.initials: A
authors.lastname: Lafayette-Lucey
authors.forename: Virgil T
authors.initials: VT
authors.lastname: Wittmer
authors.forename: Michael E
authors.initials: ME
authors.lastname: Robinson
mesh_terms: D001416:Back Pain / Q000175:diagnosis* / Q000628:therapy*; D002908:Chronic Disease; D005260:Female; D005431:Florida; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care / Q000379:methods*; D010147:Pain Measurement / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires; D016896:Treatment Outcome